#57BBB6
Closest named color: Topaz (#13BBAF). oklch(73.1% 0.094 190.9), rgb(87, 187, 182).
Aa
Black text reads best on this color (9.18:1).
About this color
#57BBB6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.094 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.034 away. Black text reads best on it, at 9.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.18:1 |
| White text | 2.28:1 |
Values
| HEX | #57BBB6 |
| RGB | rgb(87, 187, 182) |
| HSL | hsl(177, 42%, 54%) |
| OKLCH | oklch(73.1% 0.094 190.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #57BBB6 | 2.28:1 | Fails | Lc -49.7 | Large or bold text, headings |
| Black text on #57BBB6 | 9.18:1 | AAA | Lc 59.1 | Large or bold text, headings |
| #57BBB6 text on white | 2.28:1 | Fails | Lc 44.8 | Non-text elements, placeholder text |
| #57BBB6 text on black | 9.18:1 | AAA | Lc -57.3 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DEEEEC
oklch(93.7% 0.017 187.9)
-
Step 200
200
#C2E0DE
oklch(88.4% 0.032 191.7)
-
Step 300
300
#95CDC9
oklch(80.9% 0.058 190.5)
-
Step 400
400 (this color)
#57BBB6
oklch(73.1% 0.094 190.9)
-
Step 500
500
#009E99
oklch(63.1% 0.109 190.8)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B58
oklch(42.5% 0.073 190.9)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#57BBB6 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B1B3B6 | 0.098 |
| Deuteranopia (no green cones) | #A1A6B7 | 0.094 |
| Tritanopia (no blue cones) | #00C0B9 | 0.032 |
| Achromatopsia (no color) | #ABABAB | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57BBB6
#57BBB6
oklch(73.1% 0.094 190.9)
- #DC8F9A
#DC8F9A
oklch(73.1% 0.094 10.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #57BBB6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.034
- Light Sea Green #20B2AA ΔE 0.045
- Greeny Blue #42B395 ΔE 0.053
- Turquoise Blue #06B1C4 ΔE 0.054
- Dark Turquoise #00CED1 ΔE 0.057
- Medium Turquoise #48D1CC ΔE 0.060
- Medium Aquamarine #66CDAA ΔE 0.062
- Muted Teal #90B494 ΔE 0.064
Use #57BBB6 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.